Deeply pseudoscalar meson electroproduction with CLAS and Generalized Parton Distributions

Abstract : We discuss the recent data of exclusive $\pi^0$ (and $\pi^+$) electroproduction on the proton obtained by the CLAS collaboration at Jefferson Lab. It is observed that the cross sections, which have been decomposed in $\sigma_T +\epsilon\sigma_L$, $\sigma_{TT}$ and $\sigma_{LT}$ structure functions, are dominated by transverse amplitude contributions. The data can be interpreted in the Generalized Parton Distribution formalism provided that one includes helicity-flip transversity GPDs.
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http://hal.in2p3.fr/in2p3-01313300
Contributor : Sophie Heurteau <>
Submitted on : Monday, May 9, 2016 - 5:42:46 PM
Last modification on : Thursday, January 11, 2018 - 6:12:41 AM

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  • HAL Id : in2p3-01313300, version 1
  • ARXIV : 1412.4315

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M. Guidal, V. Kubarovsky. Deeply pseudoscalar meson electroproduction with CLAS and Generalized Parton Distributions. 2016. ⟨in2p3-01313300⟩

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